Screen module and terminal equipment
By setting through holes or using an insulating layer on the metal layer of the screen module, the problem of poor wireless charging performance caused by shielding of the metal support layer was solved, achieving an efficient wireless charging path and improving charging efficiency.
Patent Information
- Application Number
- CN202410472566.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-19
- Publication Date
- 2025-10-31
AI Technical Summary
The metal support layer inside the screen module can block the wireless charging coil and the charging base, resulting in poor wireless charging performance.
By setting through holes in the metal layer, the current generated by the charging base can be coupled to the wireless charging device along the shortest path. Alternatively, an insulating layer can be used to replace part of the support layer to avoid shielding. Through holes can be set at positions aligned with the wireless charging device in the thickness direction of the screen module, or through holes can be set in the metal layer to shorten the current conduction path.
It effectively shortens the current conduction path, reduces power loss, improves wireless charging efficiency, and enables efficient charging even when the screen is folded without needing to distinguish which side of the screen is in contact with the charging base, thus enhancing the user experience.
Smart Images
Figure CN120879991A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of electronic equipment technology, and more specifically to a screen module and terminal device. Background Technology
[0002] With the development of wireless charging technology, more and more electronic devices, such as mobile phones, are equipped with wireless charging capabilities. For mobile phones, the device consists of a screen module and a wireless charging coil. During charging, the phone can be placed on an external charging dock, and wireless charging is achieved through the interaction of the wireless charging coil and the dock. However, during the charging process, the metal support layer inside the screen module acts as a barrier between the wireless charging coil and the charging dock, shielding the current and resulting in poor wireless charging performance. Summary of the Invention
[0003] In view of this, this application provides a screen module and terminal device to solve the problem of poor wireless charging performance caused by the shielding effect of the metal support layer in the screen module in the prior art.
[0004] In a first aspect, this application provides a screen module, comprising: a display layer, a first support layer, and a second support layer. The first support layer is disposed on one side of the display layer. The second support layer is disposed on the side of the first support layer opposite to the display layer. At least one of the first and second support layers is a metal layer, and the metal layer has through-holes aligned with a wireless charging device in a terminal device along the thickness direction of the screen module; alternatively, both the first and second support layers are insulating layers.
[0005] In this application, by setting a through hole on the metal layer at the position corresponding to the wireless charging device, and the through hole penetrating the metal layer along the thickness direction of the screen module, the current generated by the charging base will couple to the wireless charging device along the shortest path. Since the through hole and the charging base are opposite each other, the current generated by the charging base can be coupled to the wireless charging device along the inner wall of the through hole that is closer in position. This can effectively shorten the current conduction path, reduce power loss, and effectively improve charging efficiency.
[0006] In addition, both the first and second support layers can be insulating layers. That is to say, the materials of the first and second support layers are non-metallic materials, which do not shield the current. The current generated by the charging base can pass through the non-metallic second support layer and the first support layer in sequence and then be coupled to the wireless charging device to achieve efficient charging.
[0007] In one possible design, the through hole includes a plurality of first holes and at least one second hole, wherein the length direction of the first hole and the length direction of the second hole form an angle, and both the length direction of the first hole and the length direction of the second hole are perpendicular to the thickness direction of the screen module; the plurality of first holes are spaced apart, and two adjacent first holes are connected through at least one second hole.
[0008] The first and second holes are aligned with the wireless charging device along the thickness of the screen module, allowing for a shorter current conduction path between the charging base and the wireless charging device, thus improving wireless charging efficiency. Furthermore, all the first and second holes are interconnected, allowing current to be conducted through the inner walls of each hole, thereby reducing the effectiveness of the metal shielding.
[0009] In one possible design, there is one second hole, which communicates with each of the first holes. That is, the second hole can penetrate each of the first holes in a second direction, thereby facilitating the manufacturing process.
[0010] In one possible design, multiple second holes are provided, with adjacent first holes connected by a second hole. At least some of the second holes are connected to the corresponding first holes at different positions along the length of the second hole. This separation of the second holes from the first holes in the second direction helps prevent the second holes from being too concentrated, thus avoiding creases in the screen module.
[0011] In one possible design, at least one of the second holes penetrates the edge of the metal layer, allowing current to be coupled to the wireless charging device primarily through the inner wall of the corresponding hole, rather than along the surface of the metal layer and around its edge before being coupled to the wireless charging device. This effectively reduces the adverse effects of metal shielding and improves charging efficiency.
[0012] In one possible design, the widths of the first hole and the second hole are between 0.05 and 0.5 mm. Within this width range, the structural strength of the metal layer at the opening location can be guaranteed while allowing current to pass through.
[0013] In one possible design, the lengths of the first hole and the second hole are less than or equal to 30 mm. For example, multiple second holes can be provided, and the length of the first hole can be greater than the length of the second hole. For instance, the length of the first hole can be 30 mm, and the length of the second hole can be 5 mm. This allows current to pass through while maintaining the structural strength of the metal layer and preventing creases.
[0014] In one possible design, the spacing between two adjacent first holes is greater than or equal to 0.12 mm. For example, the spacing between two adjacent first holes can be 0.12 mm, 0.15 mm, or 0.2 mm. Within this spacing range, a greater number of first holes can be arranged within a limited space on the metal layer to improve current conduction efficiency, while avoiding a reduction in the structural strength of the metal layer due to excessively small distances between adjacent first holes.
[0015] In one possible design, both the first and second support layers are metal layers. The first support layer has a first through-hole, and the second support layer has a second through-hole. The first and second through-holes are aligned with the wireless charging device along the thickness direction of the screen module. By making both the first and second support layers metal layers, the overall reliability of the screen module can be improved. Furthermore, by placing the first and second through-holes on the first and second support layers at positions aligned with the wireless charging device, a shorter current conduction path can be established through the inner walls of the first and second through-holes. This allows the current generated by the charging base to sequentially couple with the wireless charging device through the inner walls of the first and second through-holes, thereby improving charging efficiency.
[0016] In one possible design, the first support layer is an insulating layer, and the second support layer is a metal layer. A third through-hole is provided on the second support layer, aligned with the wireless charging device along the thickness direction of the screen module. The insulating layer is made of a non-metallic material, which does not shield current; therefore, current can pass through the non-metallic first support layer and couple with the wireless charging device. The third through-hole on the second support layer allows current to conduct along its inner wall, shortening the current conduction path, reducing power loss, and improving charging efficiency.
[0017] In one possible design, the second support layer is an insulating layer, and the first support layer is a metal layer. A fourth through-hole is provided on the first support layer, aligned with the wireless charging device along the thickness direction of the screen module. Current can pass through the non-metallic second support layer and couple with the wireless charging device. By providing the fourth through-hole on the first support layer, current can be conducted along the inner wall of the through-hole, thereby shortening the current conduction path, reducing power loss, and improving charging efficiency.
[0018] In one possible design, the insulating layer is made of fiber composite material, polyimide, ultra-thin glass, or polyethylene terephthalate. These materials possess properties such as high hardness, scratch resistance, no creases upon bending, and high temperature resistance, enabling the first or second support layer to achieve good support strength and bending characteristics. This ensures the structural reliability of the screen module while also providing it with excellent bending performance.
[0019] In one possible design, thermoplastic polyurethane elastomer (TPU) layers or silicone layers are respectively connected to both sides of the insulating layer. That is, the first or second support layer can be a three-layer composite layer composed of a TPU layer, an insulating layer, and another TPU layer stacked sequentially, or the first or second support layer can be a three-layer composite layer composed of a silicone layer, an insulating layer, and another silicone layer stacked sequentially. Both the TPU and silicone layers can improve the impact resistance and cushioning of the first or second support layer, thereby contributing to improved overall reliability of the screen module.
[0020] In one possible design, the through-hole is filled with an insulating medium. This insulating medium is a non-metallic material and does not shield current, meaning current can pass through the insulating medium in the through-hole and couple to the wireless charging device, achieving efficient charging. The insulating medium can both ensure current flow and enhance the structural strength of the metal layer at the through-hole.
[0021] In one possible design, the insulating medium is silicone, epoxy resin, acrylic resin, thermoplastic polyurethane elastomer layer, or silicone. These materials allow current to pass through and couple to the wireless charging device, while simultaneously enhancing the structural strength of the metal layer at the via, reducing the risk of cracking at the location of the metal layer at the via.
[0022] Secondly, this application also provides a terminal device, which includes the screen module provided in the first aspect of this application. The terminal device including the aforementioned screen module has similar technical effects to the aforementioned screen module, and will not be described in detail here.
[0023] In one possible design, the terminal device further includes a wireless charging device; the screen module includes a first screen, a second screen, and a bending portion, wherein the first screen and the second screen switch between a folded state and a flattened state via the bending portion; along the thickness direction of the screen module, the first screen is aligned with the wireless charging device, and when at least one of the first support layer and the second support layer is a metal layer, at least a portion of the through holes on the metal layer are located on the first screen, and the through holes are aligned with the wireless charging device.
[0024] For foldable phones, when the phone is folded, the screen module folds outwards, meaning the first and second screens can cover the outside of the phone. When the phone is folded or unfolded, the side containing the wireless charging device can be placed on a charging dock. Specifically, in the folded state, the first screen of the phone can contact the charging dock, and the current generated by the charging dock can couple to the wireless charging device through through-holes in the metal layer of the first screen.
[0025] In one possible design, at least some of the through-holes on the metal layer are located on the first screen, and at least another portion of the through-holes are located on the second screen. When the first and second screens are in a folded state, the through-holes on the first screen, the through-holes on the second screen, and the wireless charging device are aligned along the thickness direction of the screen module. In this embodiment, the metal layers of both the first and second screens can be provided with through-holes. When the first and second screens are in a folded state, regardless of whether the first screen or the second screen contacts the charging base, the current generated by the charging base can be coupled to the wireless charging base through the through-holes on the first and second screens. Through the through-holes on the metal layers of the first and second screens, the shielding effect of the metal layers in the first or second screen can be greatly reduced. Therefore, when charging in a folded state, there is no need to distinguish between the first and second screens; placing either the first or second screen on the charging base will achieve efficient charging, facilitating charging operations and improving the user experience.
[0026] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this application. Attached Figure Description
[0027] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0028] Figure 1 This is a schematic diagram of the structure of a terminal device provided in one embodiment of this application;
[0029] Figure 2 This is a side view of a terminal device in a folded state being charged, according to an embodiment of this application.
[0030] Figure 3 This is a schematic diagram of the structure of a terminal device provided in another embodiment of this application;
[0031] Figure 4 A side view of a terminal device during charging, provided in another embodiment of this application;
[0032] Figure 5 This is a partial cross-sectional view of a screen module provided in one embodiment of this application.
[0033] Figure 6 A partial cross-sectional view of a screen module provided in another embodiment of this application;
[0034] Figure 7 This is a partial cross-sectional view of a screen module provided in another embodiment of this application.
[0035] Figure 8 A side view of a terminal device in a folded state for charging, according to another embodiment of this application;
[0036] Figure 9 This is a top view of a screen module provided in one embodiment of this application;
[0037] Figure 10 for Figure 9 A magnified view of a portion at point A;
[0038] Figure 11 A top view of a screen module provided in another embodiment of this application;
[0039] Figure 12 for Figure 11 A magnified view of the area at point B;
[0040] Figure 13 This is a partial cross-sectional view of a screen module provided in another embodiment of the present application.
[0041] Figure 14 A partial cross-sectional view of a screen module provided in another embodiment of this application is also provided.
[0042] Figure label:
[0043] 100-Screen Module;
[0044] 110 - First screen;
[0045] 120 - Second screen;
[0046] 130-bend;
[0047] 200-Wireless charging device;
[0048] 300-charging dock;
[0049] 1-First support layer;
[0050] 2-Second support layer;
[0051] 3-Display layer;
[0052] 4-Cover plate layer;
[0053] 5 - First adhesive layer;
[0054] 6-Second adhesive layer;
[0055] 7-Through hole;
[0056] 71 - First through hole;
[0057] 72 - Second through hole;
[0058] 73 - First hole;
[0059] 74 - Second hole;
[0060] 75 - Insulating medium;
[0061] Z-thickness direction;
[0062] X - First direction;
[0063] Y - Second direction. Detailed Implementation
[0064] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.
[0065] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.
[0066] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.
[0067] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.
[0068] In the description of this application, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; unless otherwise specified or explained, the term "multiple" refers to two or more; the terms "connected," "fixed," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0069] With the development of wireless charging technology, more and more electronic devices, such as mobile phones, are equipped with wireless charging capabilities. For mobile phones, the device consists of a screen module and a wireless charging coil. During charging, the phone can be placed on an external charging dock, where the wireless charging coil and dock work together to achieve wireless charging. However, when the phone is placed on the charging dock with the screen side facing down, the metal support layer inside the screen module acts as a barrier between the wireless charging coil and the charging dock. This metal support layer shields the current, resulting in poor wireless charging performance.
[0070] This application provides a screen module that can be used in terminal devices with wireless charging capabilities. These terminal devices can be mobile phones, tablets, smart bracelets, smartwatches, smart helmets, smart glasses, etc. This embodiment does not limit the specific type of terminal device. Figure 1 This is a schematic diagram of the structure of the terminal device provided in the embodiments of this application. Figure 1 The terminal device shown is foldable mobile phone, and this embodiment uses... Figure 1 The following explanation uses a foldable phone as an example. Figure 2 A side view of the terminal device provided in the embodiments of this application in a folded state, with reference to... Figure 2 The foldable phone may include a wireless charging device 200 and a screen module 100 provided in this application, with the screen module 100 covering the outside of the wireless charging device 200. The wireless charging device 200 may be a wireless charging coil.
[0071] The screen module provided in this application is used in one application scenario, referring to... Figure 1The terminal device can be a foldable device, such as a foldable phone. The screen module of the foldable phone can include a first screen 110, a second screen 120, and a bending portion 130. The first screen 110 can be the main screen of the foldable phone, and the second screen 120 can be the secondary screen. The first screen 110 and the second screen 120 switch between a folded state and a flattened state via the bending portion 130. Along the thickness direction Z of the screen module, the first screen 110 can be aligned with the wireless charging device 200. When the foldable phone is in the folded state, the screen module can be in an outward folding shape, as shown in the figure. Figure 2 That is, the first screen 110 and the second screen 120 can cover the outside of the foldable phone. When the foldable phone is in a folded or unfolded state, the part of the foldable phone with the wireless charging device 200 can be placed on the charging base 300. In the folded state, the first screen 110, which is aligned with the wireless charging device 200, can contact the charging base 300. The current generated by the charging base 300 can pass through the first screen 110 and couple to the wireless charging device 200 to achieve wireless charging.
[0072] In another application scenario, the screen module provided in this application allows the terminal device to be a non-foldable device. Figure 3 This is a schematic diagram of the structure of a terminal device provided in another embodiment of this application, with reference to... Figure 3 For example, the terminal device can be Figure 3 The image shows a candybar phone. Figure 4 A side view of a terminal device during charging, provided in another embodiment of this application, with reference to... Figure 4 The candybar phone can be equipped with a wireless charging device 200. When wireless charging is needed, the part of the candybar phone aligned with the wireless charging device 200 can be placed on an external charging dock 300 to achieve wireless charging. Specifically, when the candybar phone contacts the charging dock 300 with one side of the screen module 100, the current generated by the charging dock 300 can pass through the screen module 100 and couple to the wireless charging device 200.
[0073] Of course, in other application scenarios, the screen module can also be used in other devices that can perform wireless charging, such as tablets and smart bracelets. These will not be elaborated upon here.
[0074] The screen module may include a display layer 3, a first support layer 1, and a second support layer 2, which are stacked sequentially. The display layer 3 displays the content and can be a liquid crystal display (LCD), an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode (AMOLED), a flexible light-emitting diode (FLED), Mini LED, Micro LED, Micro-OLED, or quantum dot light-emitting diode (QLED). A cover layer 4 may be provided on the display layer 3 to protect it from scratches by hard objects or moisture contamination.
[0075] Figure 5 This is a partial view of a screen module provided in one embodiment of this application, with reference to... Figure 5 The first support layer 1 can be bonded to the display layer 3. In one embodiment, the first support layer 1 can be bonded to the side of the display layer 3 away from the cover plate layer 4, that is, there is a first adhesive layer 5 between the first support layer 1 and the display layer 3. The first support layer 1 can improve the reliability of the structure of the display layer 3, and at the same time, the first support layer 1 can also play a role in strengthening the overall structure of the screen module.
[0076] Reference Figure 5 The second support layer 2 can be bonded to the side of the first support layer 1 away from the display layer 3. That is, there is a second adhesive layer 6 between the second support layer 2 and the first support layer 1. The second support layer 2 can also strengthen the overall structure of the screen module. At the same time, the second support layer 2 can be used as the outermost film layer on one side of the screen module and can be used to connect with structural components such as the middle frame of the mobile phone.
[0077] In one embodiment, at least one of the first support layer 1 and the second support layer 2 may be a metal layer. For example, Figure 6 A partial cross-sectional view of a screen module provided in another embodiment of this application, with reference to... Figure 6 One of the first support layer 1 and the second support layer 2 can be a metal layer, and the other can be a non-metal layer. Alternatively, Figure 7 This is a partial cross-sectional view of a screen module provided in another embodiment of this application, with reference to... Figure 7 Both the first support layer 1 and the second support layer 2 are metal layers. (Refer to...) Figure 7 The metal layer can have through holes 7 along the thickness direction Z of the screen module, which can be aligned with the wireless charging device 200 in the terminal device. The metal layer can be made of stainless steel, titanium alloy, or high-modulus aluminum, etc. The metal layer has a shielding effect on current, meaning that current cannot penetrate the metal layer; it can only be conducted along the surface and edges of the metal layer. In other words, when the terminal device is placed on the charging base 300 with one side of the screen module for charging, the metal layer of the screen module will block the wireless charging device 200 inside the terminal device and the external charging base 300. Without through holes 7 at the positions on the metal layer corresponding to the wireless charging device 200, the current generated by the charging base 300 will travel along the surface of one side of the metal layer, bypassing the edge, and then to the surface of the other side of the metal layer before coupling with the wireless charging device 200. This prolongs the current conduction path, reduces charging efficiency, and also causes current loss, further reducing charging efficiency. Therefore, in this application, a through hole 7 can be provided on the metal layer at the position corresponding to the wireless charging device 200. The through hole 7 penetrates the metal layer along the thickness direction Z of the screen module. The current generated by the charging base 300 will couple with the wireless charging device 200 along the shortest path. Since the through hole 7 and the charging base 300 are opposite each other, the current generated by the charging base 300 can be coupled to the wireless charging device 200 along the inner wall of the through hole 7 which is closer in position. This can effectively shorten the current conduction path, reduce power loss, and effectively improve charging efficiency.
[0078] In one embodiment, as described above, refer to Figure 2 For a foldable phone as the terminal device, the screen module of the foldable phone may include a first screen 110, a second screen 120, and a bending portion 130. The first screen 110 and the second screen 120 switch between a folded state and a flattened state through the bending portion 130. Along the thickness direction Z of the screen module, the first screen 110 is aligned with the wireless charging device 200. When at least one of the first support layer 1 and the second support layer 2 is a metal layer, at least a portion of the through-hole 7 on the metal layer can be located on the first screen 110, and the through-hole 7 is aligned with the wireless charging device 200. When the foldable phone is in a folded state for charging, refer to... Figure 2 The first screen 110 and the second screen 120 can cover the outside of the foldable phone. The first screen 110 of the foldable phone can contact the charging base 300. The current generated by the charging base 300 can be coupled to the wireless charging device 200 through the through hole 7 on the metal layer inside the first screen 110.
[0079] In one embodiment, Figure 8A side view of a terminal device in a folded state during charging, as provided in another embodiment of this application, with reference to... Figure 8 At least some of the through holes on the metal layer may be located on the first screen 110, and at least another portion of the through holes may be located on the second screen 120. When the first screen 110 and the second screen 120 are in a folded state, the through holes on the first screen 110, the through holes on the second screen 120, and the wireless charging device 200 are aligned along the thickness direction Z of the screen module. In this embodiment, the metal layers of both the first screen 110 and the second screen 120 can be provided with through holes. When the first screen 110 and the second screen 120 are in a folded state, regardless of whether the first screen 110 or the second screen 120 is in contact with the charging base 300, the current generated by the charging base 300 can be coupled to the wireless charging base 300 through the through holes on the first screen 110 and the second screen 120. Through the through holes on the metal layers of the first screen 110 and the second screen 120, the shielding effect of the metal layers of the first screen 110 or the second screen 120 can be greatly reduced. Therefore, when charging in a folded state, there is no need to distinguish between the first screen 110 and the second screen 120. Placing either the first screen 110 or the second screen 120 on the charging base 300 can achieve efficient charging, which is convenient for charging operations and improves the user experience.
[0080] In one embodiment, Figure 9 This is a top view of a screen module provided in one embodiment of this application. Figure 10 for Figure 9 A magnified view of a portion at point A, see reference. Figure 9 and Figure 10 The through-hole 7 may include multiple first holes 73 and at least one second hole 74. The length directions of the first holes 73 and the second holes 74 form an angle, and both the length directions of the first holes 73 and the second holes 74 are perpendicular to the thickness direction Z of the screen module. For ease of explanation, this embodiment defines the length direction of the first holes 73 as the first direction X and the length direction of the second holes 74 as the second direction Y. The angle between the first direction X and the second direction Y can be greater than 0° and less than 180°, for example, it can be 30°, 60°, 90°, 120°, 150°, etc. The positions of these first holes 73 and second holes 74 are aligned with the wireless charging device 200 along the thickness direction Z of the screen module, thereby allowing for a shorter conduction path of current between the charging base 300 and the wireless charging device 200, improving wireless charging efficiency. Furthermore, for the aforementioned metal layer, the current needs to be conducted on the metal material. Therefore, by setting multiple first holes 73, the inner walls of the multiple first holes 73 can all be used to conduct current, thereby improving the current conduction efficiency and thus improving the charging efficiency.
[0081] Furthermore, if the individual first holes 73 are not interconnected, the metal layer will have a shielding effect between adjacent first holes 73, reducing charging efficiency. In this embodiment, refer to... Figure 10 The multiple first holes 73 are spaced apart, and two adjacent first holes 73 can be connected through at least one second hole 74. That is, each first hole 73 and each second hole 74 are connected, and the current can be conducted through the inner wall of each hole, thereby reducing the metal shielding effect.
[0082] In one embodiment, Figure 11 This is a top view of a screen module provided in another embodiment of this application. Figure 12 for Figure 11 A magnified view of the area at point B, see reference. Figure 11 and Figure 12 There can be one second hole 74, which is connected to each of the first holes 73. That is to say, the second hole 74 can penetrate each of the first holes 73 in the second direction Y, thereby facilitating the process.
[0083] The second hole 74 can extend in a straight line (see reference). Figure 12 The first hole 73 can extend along a curve or a broken line. The specific extension direction of the second hole 74 is determined to ensure that the second hole 74 can communicate with each of the first holes 73. In some embodiments, the first hole 73 can also extend along a straight line, or along a curve, wavy line, broken line, etc. This embodiment does not limit this.
[0084] In one embodiment, the second hole 74 may be provided with multiple (see reference). Figure 10 The two adjacent first holes 73 are connected by a second hole 74. At least some of the second holes 74 are located at different positions from the first holes 73 in the second direction Y, thus preventing the second holes 74 from being too concentrated and causing creases in the screen module. For example, along the direction in which the first holes 73 are arranged, adjacent second holes 74 are spaced apart in the length direction (first direction X) of the first holes 73, so that the second holes 74 are distributed evenly, resulting in more uniform stress on the metal layer and preventing wrinkles and creases.
[0085] In one embodiment, at least one second hole 74 can penetrate the edge of the metal layer, allowing current to be coupled to the wireless charging device 200 primarily through the inner wall of the corresponding hole, rather than along the surface of the metal layer and around its edge before coupling to the wireless charging device 200. This effectively reduces the adverse effects of metal shielding and improves charging efficiency. In one embodiment, referring to... Figure 10When there are multiple second holes 74, one second hole 74 near the edge of the metal layer can penetrate the edge of the metal layer. In one embodiment, refer to... Figure 12 When the second hole 74 has one, one end of the second hole 74 can penetrate the edge of the metal layer.
[0086] In one embodiment, the widths of the first hole 73 and the second hole 74 can be between 0.05 and 0.5 mm. Within this width range, current can pass through while ensuring the structural strength of the metal layer at the opening location. For example, the widths of the first hole 73 and the second hole 74 can be 0.05 mm, 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, or 0.5 mm.
[0087] In one embodiment, due to process requirements, the lengths of the first hole 73 and the second hole 74 need to be within a certain range. If the length of the first hole 73 or the second hole 74 is too large, for example, greater than 30 mm, the first hole 73 or the second hole 74 is prone to deformation during etching, making product processing difficult. Therefore, in this embodiment, the lengths of the first hole 73 and the second hole 74 can be less than or equal to 30 mm. For example, multiple second holes 74 can be provided, and the length of the first hole 73 can be greater than the length of the second hole 74. For example, the length of the first hole 73 can be 30 mm, and the length of the second hole 74 can be 5 mm. This allows current to pass through while ensuring the structural strength of the metal layer and avoids creases.
[0088] In one embodiment, the spacing between two adjacent first holes 73 can be greater than or equal to 0.12 mm. For example, the spacing between two adjacent first holes 73 can be 0.12 mm, 0.15 mm, or 0.2 mm. Within the above spacing range, a greater number of first holes 73 can be arranged in a limited space on the metal layer to improve current conduction efficiency, while avoiding a reduction in the structural strength of the metal layer due to excessively small distances between two adjacent first holes 73.
[0089] In one embodiment, Figure 13 This is a partial cross-sectional view of a screen module provided in another embodiment of this application, with reference to... Figure 13 The through-hole 7 can be filled with an insulating medium 75. The insulating medium 75 is made of a non-metallic material and does not shield current, meaning current can pass through the insulating medium 75 in the through-hole 7 and couple to the wireless charging device 200, achieving efficient charging. The insulating medium 75 can both ensure current flow and enhance the structural strength of the metal layer at the through-hole 7.
[0090] In one embodiment, the insulating medium 75 can be silicone, epoxy, acrylic, thermoplastic polyurethane elastomer layer, or silicone. These materials allow current to pass through and couple to the wireless charging device 200, while also enhancing the structural strength of the metal layer at the via 7 and reducing the risk of cracking at the location of the metal layer at the via 7.
[0091] In one embodiment, reference is made to... Figure 5 Both the first support layer 1 and the second support layer 2 can be insulating layers. This means that both the first support layer 1 and the second support layer 2 are made of non-metallic materials and do not shield current. The current generated by the charging base 300 can pass sequentially through the non-metallic second support layer 2 and the first support layer 1 before being coupled to the wireless charging device 200, achieving efficient charging. Notably, the use of insulating materials in the first support layer 1 and the second support layer 2 eliminates the need for through holes 7, thus ensuring the integrity and stability of the structure of the first support layer 1 and the second support layer 2.
[0092] In one embodiment, the insulating layer can be made of fiber composite material, polyimide (PI), ultra-thin glass (UTG), or polyethylene terephthalate (PET). The fiber composite material can include carbon fiber, glass fiber, or basalt fiber. These materials possess properties such as high hardness, scratch resistance, no creases upon bending, and high temperature resistance, enabling the first support layer 1 or the second support layer 2 to achieve good support strength and bending characteristics, ensuring the structural reliability of the screen module, and simultaneously providing the screen module with excellent bending properties.
[0093] In one embodiment, thermoplastic polyurethane elastomer (TPU) layers or silicone layers can be respectively connected to both sides of the insulating layer. That is, the first support layer 1 or the second support layer 2 can be a three-layer composite layer composed of a TPU layer, an insulating layer, and another TPU layer stacked sequentially, or the first support layer 1 or the second support layer 2 can be a three-layer composite layer composed of a silicone layer, an insulating layer, and another silicone layer stacked sequentially. Both the TPU layer and the silicone layer can improve the impact resistance and cushioning of the first support layer 1 or the second support layer 2, thereby helping to improve the overall reliability of the screen module. In addition, in some other embodiments, the first support layer 1 or the second support layer 2 can also be a composite film layer composed of four, five, or more film layers, which is not limited in this embodiment.
[0094] In one embodiment, reference is made to... Figure 7Both the first support layer 1 and the second support layer 2 can be metal layers. A first through-hole 71 can be provided on the first support layer 1, and a second through-hole 72 can be provided on the second support layer 2. Along the thickness direction Z of the screen module, the first through-hole 71, the second through-hole 72, and the wireless charging device 200 are aligned. By making both the first support layer 1 and the second support layer 2 metal layers, the overall reliability of the screen module can be improved. Simultaneously, by providing the first through-hole 71 and the second through-hole 72 on the first support layer 1 and the second support layer 2 at positions aligned with the wireless charging device 200, a shorter current conduction path can be established through the inner walls of the first through-hole 71 and the second through-hole 72. This allows the current generated by the charging base 300 to sequentially couple with the wireless charging device 200 through the inner walls of the second through-hole 72 and the first through-hole 71, thereby improving charging efficiency.
[0095] In one embodiment, Figure 14 A partial cross-sectional view of a screen module provided in an embodiment of this application is also provided, with reference to... Figure 14 The first support layer 1 can be an insulating layer, and the second support layer 2 can be a metal layer. A third through-hole 7 is provided on the second support layer 2, aligned with the wireless charging device 200 along the thickness direction Z of the screen module. The insulating layer is made of a non-metallic material and does not shield current; therefore, current can pass through the non-metallic first support layer 1 and couple with the wireless charging device 200. The third through-hole 7 on the second support layer 2 allows current to be conducted along its inner wall, shortening the current conduction path, reducing power loss, and improving charging efficiency.
[0096] In one embodiment, reference is made to... Figure 6 The second support layer 2 can be an insulating layer, and the first support layer 1 can be a metal layer. A fourth through-hole 7 is provided on the first support layer 1, aligned with the wireless charging device 200 along the thickness direction Z of the screen module. Current can pass through the non-metallic second support layer 2 and couple with the wireless charging device 200. By providing the fourth through-hole 7 on the first support layer 1, current can be conducted along the inner wall of the fourth through-hole 7, thereby shortening the current conduction path, reducing power loss, and improving charging efficiency.
[0097] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A screen module, characterized in that, include: Display layer; A first support layer is disposed on one side of the display layer; The second support layer is disposed on the side of the first support layer that is opposite to the display layer; In this configuration, at least one of the first and second support layers is a metal layer, and the metal layer has through-holes aligned with the wireless charging device in the terminal device along the thickness direction of the screen module; or... Both the first support layer and the second support layer are insulating layers.
2. The screen module according to claim 1, characterized in that, The through hole includes a plurality of first holes and at least one second hole, wherein the length direction of the first hole and the length direction of the second hole form an angle, and both the length direction of the first hole and the length direction of the second hole are perpendicular to the thickness direction of the screen module. The plurality of first holes are spaced apart, and two adjacent first holes are connected through at least one second hole.
3. The screen module according to claim 2, characterized in that, There is one second hole, and the second hole is connected to each of the first holes.
4. The screen module according to claim 2, characterized in that, The second hole is provided in multiple ways, and two adjacent first holes are connected by a second hole. At least some of the second holes are connected to the corresponding first holes in different positions along the length of the second hole.
5. The screen module according to claim 2, characterized in that, At least one of the second holes penetrates the edge of the metal layer.
6. The screen module according to claim 2, characterized in that, The widths of the first hole and the second hole are between 0.05 and 0.5 mm.
7. The screen module according to claim 2, characterized in that, The lengths of the first hole and the second hole are less than or equal to 30 mm.
8. The screen module according to claim 2, characterized in that, The distance between two adjacent first holes is greater than or equal to 0.12 mm.
9. The screen module according to claim 1, characterized in that, Both the first support layer and the second support layer are metal layers. The first support layer has a first through hole, and the second support layer has a second through hole. The first through hole, the second through hole, and the wireless charging device are aligned along the thickness direction of the screen module.
10. The screen module according to claim 1, characterized in that, The first support layer is an insulating layer, the second support layer is a metal layer, and a third through hole is provided on the second support layer. Along the thickness direction of the screen module, the third through hole is aligned with the wireless charging device.
11. The screen module according to claim 1, characterized in that, The second support layer is an insulating layer, the first support layer is a metal layer, and a fourth through hole is provided on the first support layer. Along the thickness direction of the screen module, the fourth through hole is aligned with the wireless charging device.
12. The screen module according to any one of claims 1-11, characterized in that, The insulating layer is made of fiber composite material, polyimide, ultrathin glass, or polyethylene terephthalate.
13. The screen module according to any one of claims 1-11, characterized in that, The insulating layer is connected to either a thermoplastic polyurethane elastomer layer or a silicone layer on both sides.
14. The screen module according to claim 1, characterized in that, The through hole is filled with an insulating medium.
15. The screen module according to claim 14, characterized in that, The insulating medium is silicone, epoxy resin, acrylic resin, thermoplastic polyurethane elastomer layer, or silicone.
16. A terminal device, characterized in that, Includes the screen module as described in any one of claims 1-15.
17. The terminal device according to claim 16, characterized in that, Including wireless charging devices; The screen module includes a first screen, a second screen, and a bending section. The first screen and the second screen can switch between a folded state and a flattened state through the bending section. Along the thickness direction of the screen module, the first screen is aligned with the wireless charging device. When at least one of the first support layer and the second support layer is a metal layer, at least a portion of the through holes on the metal layer are located on the first screen, and the through holes are aligned with the wireless charging device.
18. The terminal device according to claim 17, characterized in that, At least some of the through holes on the metal layer are located on the first screen, and at least another portion of the through holes are located on the second screen; when the first screen and the second screen are in a folded state, the through holes on the first screen, the through holes on the second screen, and the wireless charging device are aligned along the thickness direction of the screen module.